Biology Support & Movement UHS 2023
PMDC Verified Question 31 of 75
Irregular striations and involuntary control is related to?
A
Cardiac muscle cells
B
Fibroelastic cartilage cell
C
Skeletal muscle cells
D
Smooth muscle cells
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option A: Cardiac muscle cells
Concept:

Identifying muscle types by their microscopic appearance and nervous control.

Formula:

N/A (Conceptual)

Solution:

  • We must satisfy two constraints: It must be striated, and it must be involuntary.


  • Skeletal muscle is striated but completely voluntary. Smooth muscle is involuntary but entirely lacks striations.


  • Cardiac muscle perfectly fits both criteria: it possesses irregular branching striations and operates autonomously via involuntary autonomic control.


Why other options are incorrect:

Smooth muscle lacks striations entirely. Skeletal muscle is voluntary. Cartilage is not a contractile muscle tissue.

Quality & Fidelity Assurance: Every question on BeambePrep is rigorously curated against the official PMDC syllabus with zero filler, zero out-of-syllabus content, and zero typos. When an authentic past paper originally contained a historical mistake or ambiguity from the examining board (such as UHS or NUMS), BeambePrep faithfully reflects the original paper while detailing the nuance and scientific consensus in the autopsy above.

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